사용자가 구독, 계정 설정 및 청구 정보를 관리하는 데 도움이 되는 Microsoft 365 기능입니다.
Hi, thank you for reaching out to the Microsoft Q&A forum. I’m happy to help.
Log in to all of your Microsoft accounts and check if you can see the charges there.
https://account.microsoft.com/services/microsoft365/billing
If not, have you asked a family member if they may have used your card in the past?
You can refer to this article: 'How to investigate a billing charge from Microsoft.'
If you can’t find the source of the charge, it’s possible that your payment method has been compromised. In this case, you should contact your bank immediately to open a dispute ticket, request an investigation to prevent further unauthorized charges.